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The big bang, when projeced to the cosmic time scale, dissolves into a process that is not focussed to time, i. e.,
it recedes into an infinitely far past. This is a result which also  supports the request to modify the big bang theory, which has been stated time and again during the past years . [24], p. 25:
“The Einstein Theory of Relativity, formulated in 1915, supplied, in theTwenties, the most evident  explanation for the beginning of our universe so far. According to Einstein, the universe was born about 10 to 15 billions of years ago in a giant explosion, the big bang. But the Einstein theory has many gaps.
Why did the universe explode? What happened before the big bang?
Theologians as well as other scientists meanwhile are convinced of the incompleteness of the big bang theory, as it can neither explain the coming into existence of the big bang, nor the big bang itself.”
Supposedly, the reason was, nobody could know at that time about the property of the space – time continuum. Is it positively or negatively curved or plane?
Now, the time metric depends decisively on the curvature of the space- time or, respectively, on the delay parameter q of the cosmic expansion.
For a (hypothetical) universe expanding at constant speed ( Fig. 1, limit case I, q = 0, the Newton time would be identical with  the cosmic time  [4].
At an increasing delay parameter q, the difference between the cosmic and the Newton time also increases all the more.
For a plane universe (Fig. I, limit case III, q = ½), the cosmic time limps behind the Newton time by about 1 millisecond per year.
Therefore, the „normal physics" will not change if we replace the Newton time by the cosmic time.
The difference between both these  time scales, however, gains decisive importance if we try to comprehend the processes in the early universe.
While the STR relates the time to the relative speed v at which 2 systems of reference move to each other ( Fig. 3),
the CTH relates the time scale in dependency on the world age (Fig. 4), both figures on p. 10.
Both time scales are founded on the constancy of the speed of light in vacuum.
The idea that there could be a time beat that is variable versus time is also not new  [2], p. 168:
„Einstein freed the time from the chains of the Newton invariability: We know that the time can vary from place to place. Why not from time to time, too? Could this be an imaginable solution for the problem of the time scale?”
Meanwhile, the Einstein time dilatation according to Fig. 3 has excellently been confirmed by experiments.
Naturally, there cannot be an experimental confirmation for a time dilatation depending on the world age as, so far, a theory demanding such measurements has not existed as yet.
Besides, it is questionable whether a direct experimental confirmation of the CTH would be possible at all,as we must start from the assumption that all clocks do not measure the Newton, but the cosmic time instead [4].
If at all, then probably only an indirect confirmation for the correctness of the CTH will have a chance.
 
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